Here's an ideal itinerary for 5 days in Kathmandu:

Day 1:

• Start your day with a visit to Swayambhunath Stupa, also known as the Monkey Temple. This iconic Buddhist temple is located on a hilltop and offers stunning views of the city.
• After that, head to Kathmandu Durbar Square, a UNESCO World Heritage Site that showcases traditional Nepalese architecture and culture.
• In the evening, explore the vibrant streets of Thamel, a popular tourist hub filled with shops, restaurants, and bars.

Day 2:

• Take a scenic drive to Bhaktapur, another UNESCO World Heritage Site known for its well-preserved medieval architecture and temples.
• Visit the Nyatapola Temple, one of the tallest and most impressive temples in Nepal.
• In the afternoon, return to Kathmandu and visit Pashupatinath Temple, a sacred Hindu temple dedicated to Lord Shiva.

Day 3:

• Start your day with a visit to Boudhanath Stupa, one of the largest stupas in the world and a significant pilgrimage site for Buddhists.
• Next, head to Patan Durbar Square, another UNESCO World Heritage Site that showcases Newari architecture and art.
• In the evening, attend a traditional Nepali cultural show and enjoy a delicious Nepali dinner.

Day 4:

• Take a day trip to Nagarkot, a scenic hill station located about 32 km from Kathmandu.
• Enjoy panoramic views of the Himalayas, including Mount Everest, and take a short hike to explore the surrounding countryside.
• Return to Kathmandu in the evening and relax at your hotel or explore more of Thamel's nightlife.

Day 5:

• Visit the National Museum of Nepal, which houses a vast collection of historical artifacts, art, and sculptures.
• Next, head to the Garden of Dreams, a peaceful oasis in the heart of Kathmandu that offers beautiful gardens and fountains.
• In the evening, enjoy a farewell dinner at a rooftop restaurant with stunning views of the city.

I hope this itinerary helps you plan your trip to Kathmandu!