Bangkok

Here's an ideal itinerary for 5 days in Bangkok with your friends:

Day 1:

• Start your day with a visit to the Grand Palace, one of the most iconic landmarks in Bangkok. You can also visit the nearby Wat Phra Kaew, which is home to the famous Emerald Buddha.
• After that, head to the nearby Wat Pho, which is famous for its giant reclining Buddha statue.
• For lunch, head to the nearby Tha Tien Market, where you can try some delicious street food.
• In the afternoon, visit the famous Chatuchak Weekend Market, which is one of the largest markets in the world. You can find everything from clothes to souvenirs to food here.
• In the evening, head to the Khao San Road area, which is famous for its nightlife. You can find plenty of bars and clubs here.

Day 2:

• Start your day with a visit to the Wat Arun temple, which is located on the banks of the Chao Phraya River.
• After that, take a boat ride along the river to the famous Wat Phra Kaew temple.
• For lunch, head to the nearby Chinatown area, which is famous for its street food.
• In the afternoon, visit the Siam Paragon mall, which is one of the largest malls in Bangkok. You can find plenty of shops and restaurants here.
• In the evening, head to the Asiatique night market, which is located on the banks of the river. You can find plenty of shops and restaurants here, as well as a Ferris wheel and other attractions.

Day 3:

• Start your day with a visit to the Jim Thompson House, which is a museum dedicated to the famous American businessman who helped revive the Thai silk industry.
• After that, head to the nearby MBK Center, which is a large shopping mall with plenty of shops and restaurants.
• For lunch, head to the nearby Siam Square area, which is famous for its street food.
• In the afternoon, visit the famous Wat Benchamabophit temple, which is also known as the Marble Temple.
• In the evening, head to the Patpong night market, which is famous for its street food and nightlife.

Day 4:

• Start your day with a visit to the famous Wat Saket temple, which is located on a hill and offers great views of the city.
• After that, head to the nearby Golden Mount temple, which is also located on a hill and offers great views of the city.
• For lunch, head to the nearby Ratchadamnoen Avenue, which is famous for its street food.
• In the afternoon, visit the famous Wat Traimit temple, which is home to the world's largest solid gold Buddha statue.
• In the evening, head to the famous Khlong Lat Mayom floating market, where you can find plenty of food and souvenirs.

Day 5:

• Start your day with a visit to the famous Wat Mahathat temple, which is home to the famous Buddha head statue.
• After that, head to the nearby Wat Suthat temple, which is famous for its giant red swing.
• For lunch, head to the nearby Yaowarat Road, which is famous for its street food.
• In the afternoon, visit the famous Wat Ratchanatdaram temple, which is home to the famous Loha Prasat temple.
• In the evening, head to the famous Khao San Road area, which is famous for its nightlife. You can find plenty of bars and clubs here.

I hope this itinerary helps you plan your trip to Bangkok with your friends!