The Roman Baths, Strand Lane is a cold spring-fed plunge bath beneath 5 Strand Lane, in the City of Westminster, off the Strand. The baths have a historical reputation of being Roman in origin, though Roman London lay 1 mile (1.6 km) to the east. The visible remains, which lie 4 feet 6 inches (1.4 m) below the modern street level, date from a 17th-century refurbishment. More detail can be found on the Wikipedia page at [1]