Itinerary for 3 day trip to London

Here's a suggested itinerary for 3 days in London that meets all your constraints:

Day 1:

Start your day with a hearty breakfast at . They serve delicious pancakes, eggs, and bacon.
After breakfast, head to the . It's free to enter and has a vast collection of artifacts from around the world, including the Rosetta Stone and the Elgin Marbles.
For lunch, head to . It's a foodie's paradise with a wide variety of cuisines to choose from. You can try some delicious street food or sit down for a meal at one of the many restaurants.
In the afternoon, take a stroll along the . You can see iconic landmarks such as the Tower Bridge, the , and the Houses of Parliament.
For dinner, head to . They serve delicious Indian food in a stylish setting.

Day 2:

Start your day with a visit to the . You can see the Crown Jewels and learn about the history of the Tower and its prisoners.
For lunch, head to . It's a vibrant and eclectic market with a wide variety of food stalls and shops.
In the afternoon, take a ride on the . It's a great way to see the city from above and get a different perspective.
For dinner, head to . They serve delicious steak at affordable prices.

Day 3:

Start your day with a visit to the . It's free to enter and has a vast collection of specimens from around the world, including a life-sized blue whale.
For lunch, head to . They serve delicious Neapolitan-style pizza.
In the afternoon, take a stroll through . You can rent a boat on the Serpentine or visit the Diana Memorial Fountain.
For dinner, head to . They serve delicious steak and seafood in a stylish setting.

As for accommodation, I recommend staying in a family-friendly hotel such as the or the . Both have comfortable rooms and are located in convenient locations.

Overall, this itinerary should cost you less than $1000 USD and provide you with a great taste of what London has to offer. Enjoy your trip!