During the 1850s and 1860s, gas works, sewage, and running water was introduced. Many streets were paved, including Skeppsbron and Strandvägen, and the railway brought Stockholm closer to continental Europe — an event which additionally lead to the creation of the first suburb Liljeholmen where railway workshops were located. As the railway was extended further north, Stockholm Central Station was inaugurated in 1871. The first horse-pulled trams were introduced in 1877. Long before the railway, steam engines became common on boats which resulted in many summertime residences being built around Stockholm. But the booming urban development was also notable in central Stockholm where several prominent Neo-Renaissance buildings were built, including the Academy of Music and Södra Teatern.