ˈɑːpəzˌɪt ðɪ ɛkstʃˈeɪndʒ bˈɪldɪŋ ɔnðə nˈɛvə, də tˈɑːmən dɪzˈaɪnd ɐ sˌɛmɪsˈɜːkjʊlɚɹ ˌoʊvɚlˈʊk wɪð sˈɜːkjʊlɚ ɹˈæmps dᵻsˈɛndɪŋ tʊ ɐ dʒˈɛɾi pɹədʒˈɛktɪŋ ˌɪntʊ ðə ɹˈɪvɚ.
Opposite the exchange building on the Neva, de Thomon designed a semicircular overlook with circular ramps descending to a jetty projecting into the river.