London

The Tower of London's romantic silhouette, so emblematic of British history, has been the backdrop for some horrific episodes as well as moments of royal splendour. — Michelin Guide

A wonderful fun house designed and inhabited by Sir John Soane (1753–1837), Royal Academy professor and architect of the Bank of England, among other buildings. — Concierge

Within the gallery rooms are Rothko and Picasso, Mondrian and Delvaux in glorious relief to... stark surroundings. — Let's Go

A tiny replica of the iconic London landmark hides on the side of the steel structure.  — Atlas Obscura

One of three frontages in the Victoria & Albert Museum, the Natural History Museum is one mile in depth and has two façades 1,000 feet long. — Travel + Leisure

The perfectly preserved underground rooms where Churchill plotted the war against Germany.  — Atlas Obscura

This elegant town-house gallery is one of the capital’s lesser-known art spots, but it's simply packed with priceless paintings, furniture and porcelain. — Afar Magazine

The National Gallery in London holds art works of the masters such as Leonardo da Vinci, Vincent van Gogh, and Rembrandt. Most importantly, entry is free! — Afar Magazine

Westminster Abbey, the huge Gothic church beside the Houses of Parliament, has been the setting for every coronation since 1066. — Concierge

Best-known as the venue for the annual July–September BBC Promenade Concerts—the "Proms"—with bargain-price standing... tickets sold on the night of the concert. — Fodor's

Kenwood House was built as a gentleman's country home and was later enlarged and decorated by Scottish architect Robert Adam, starting in 1764. — Frommer's

Built from 1886-1894 by Barrie and Jones, its total length reaches 805 m. — Michelin Guide

In fact, it’s the top attraction in the country—6.8 million people a year. Put on your walking shoes because it’s huge. — Frommer's

Families flock to this museum, as do school kids taking part in field trips (380,000 visit as part of a school group each year). — Travel + Leisure

On a clear day you can see as far as Windsor Castle, 25 miles away, from the top of the London Eye, one of the world's largest observation wheels. — Time Out

Acquired by William and Mary in 1689, Kensington Palace was radically altered first by Sir Christopher Wren and again in the reign of George I. — Time Out

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.  — Atlas Obscura

The National Portrait Gallery is the Platonic ideal of Facebook. — Let's Go